CUDA been! I do recall seeing them on 72 an up. But not all.I have often seen this , was it factory , Dunno
I am gonna say no to the hood scoops being color coded. I think this is rumor.I believe it was an option to have the hood scoops and the grille.
Folks modify their cars as they see fit. These cars are 50+ years old, and many things have become urban legend if you will. Many people remember their friends "hemi six-pack" as well....OK, the grille was obviously offered in six different colors per @larry4406 post, but why do three members remember seeing colored hood inserts? Was it another option?
